Output voltage control in three-phase voltage-source inverters using sinusoidal wave PWM (SPWM) and space-vector modulation (SVM)
Sinusoidal wave PWM
Voltage-source three-phase inverters (Fig. 35.21) are often used to drive squirrel cage induction motors (IM) in variable speed applications.
Fig. 35.21 IGBT-based voltage-sourced three-phase inverter with induction motor.
Considering almost ideal power semiconductors, the output voltage ubk(k∈{1, 2, 3}) dynamics of the inverter is negligible as the output voltage can hardly be considered a state variable in the time scale describing the motor behavior. Therefore, the best known method ...
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